TPS65131: New device to replace TPS65131

user4811888

Part Number: TPS65131

Hi TI expert,

Do you have new devices to replace this part?

This part is still complex to use with so many external components, and it seems necessary to add ~1k Rload to avoid burst mode noise.

over 4 years ago

0 user4811888 over 4 years ago

Intellectual 530 points

My application is 5V to ±12V, <500mA load. More simple is better.

0 Liaqat Khan over 4 years ago

TI__Mastermind 18550 points

Hello,

Currently, we do not have any new devices or roadmap to replace TPS65131.

Kind Regards,

Liaqat

0 user4811888 over 4 years ago in reply to Liaqat Khan

Intellectual 530 points

Hi,

thanks for your reply.

would like to learn that if you recommend to add ~1k load at the output to avoid light-load noise?

0 Liaqat Khan over 4 years ago in reply to user4811888

TI__Mastermind 18550 points

Hello,

To avoid PFM light load ripple, you should tie PSP/PSN input pins to GND. This will completely disable PFM burst operation for the positive rail and it will only operate in the PWM mode. For negative rail, if the load in your application is light, you may need to add an extra load resistor to completely avoid noise due to discontinuous operation of the converter.

Kind Regards,

Liaqat

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TPS65131: New device to replace TPS65131